Revenues - Disaggregation of Revenue by Product and Service (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenue	$ 759,249	$ 579,906	$ 424,336
Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
Subscription—self-managed and SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 675,179	$ 506,306	$ 369,349
Subscription—self-managed and SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	89.00%	87.00%	87.00%
Subscription—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 458,883	$ 355,707	$ 275,275
Subscription—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	61.00%	61.00%	65.00%
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	$ 216,296	$ 150,599	$ 94,074
SaaS | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	28.00%	26.00%	22.00%
License—self-managed and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 84,070	$ 73,600	$ 54,987
License—self-managed and other | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	11.00%	13.00%	13.00%
License—self-managed
Disaggregation of Revenue [Line Items]
Total revenue	$ 68,366	$ 63,110	$ 46,046
License—self-managed | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	9.00%	11.00%	11.00%
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 15,704	$ 10,490	$ 8,941
Professional services and other | Revenue from Contract with Customer, Product and Service Benchmark | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	2.00%	2.00%	2.00%